The Operational Process of Nostalgia: The Trigger Determines the Nostalgic Experience

Nostalgia is a complex affective state with a strong cognitive component focussed on past autobiographical memories. This complex nature of nostalgia is discussed in the literature but there are scarce empirical observations of state nostalgic processes. In this study, the operational process of nostalgia is explored by the use of two types of stimuli—indirect (instructions) and direct (music)—with a sample of 285 participants (18–35 years old) in a mixed-method experimental design. Nostalgia was observed in terms of its operational process (reaction time, duration, intensity and variation), the characteristics of the recalled event (event type and contents), and the nature of the nostalgic experience (its phenomenology, affect and motivation). The studied parameters of all three nostalgic components were found to vary with the stimulus that triggered it. The study shows that nostalgia is not a constant phenomenon but depends on the conditions that give rise to it.